amanda knox's acquittal has been overturned. an italian supreme court just deciding that she will face a retrial for the murder of her roommate, meredith kercher. cnn's ben wedeman is standing by live in rome with the very latest developments in this case. so, ben, where does this case go from here? >> reporter: well, we understand from the presiding judges that in 60 days, they will publish their reasoning for this decision to overturn the october 2011 acquittal for amanda knox and her former boyfriend, raffaele sollecito. now, after he publishes that, the defense and the prosecution has 45 days to put forward their argument. so, we're really talking about, perhaps, possibly a trial some time in the middle of the summer, but it's a convoluted, lengthy process. but certainly, this ruling, which came out about 18 minutes ago from the italian supreme court behind me, comes as something of a surprise. this morning i mentioned to one of the defense lawyers, saying that he was confident that the court would uphold the acquittal. so,